Type-writing machine.



A. m. KUROWSKI. I TYPE WRITIKG MACHINE. APPLICATION FILED DEC. 20, 1909.

1,069,149; Patented A 5, 1913.-

,5 SHEETS'SHEET 1.

A. G. F. KUROWSKI.

TYPE WRITING MACHINE. APPLIUATION FILED DEG. 20, mos.

Patented Aug. 5, 1913.

A. G. F. KUROWSKI.

TYPE WRITING MACHINE.

APPLICATION FILED DEC. 20, 1909.

1,069,149. Patented Aug. 5, 1913.

A. G. F. KUROWSKI. TYPE WRITING MACHINE. APPLIOATIORIILED 1320.20, 1909.A

PaLented Aug. 5, 1913.

A. G. F. KUROWSKI.

TYPE WRITING MACHINE.

APPLICATION FILED DEG. 20, 1909.

Patented A1155, 1913.

5 SHEBTHIEBT 5.

witnwbw:

0299M MM second inkinp ribbon is interposed between outer (oil or coilsof web on the spool.

ALFRED G. r. KUROWSKI, 012 NEW YORK,

WRITER COMPANY, or NEW YORK. N.

N. Y., ASSIGNOR TO UNDERWOOI) TYPE- Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

1.oo9,1 4o.

Specification. Letters Patent.

Patented Aug. 5,191 3.

Application filed December 20, 1909. Serial No. 534,070.

To all whom. it may concern:

Be it known that I, Anrinin (i. F. KURow- Mil. a. citizen of the UnitedStates, residing in New York city, borough of Bronx, in the county ofNew York and State of New York, have invented certain new and use fulImprovements in Type \Vriting Machines, of which the following is aspecification.

This invention relates to devices for feeding a web or plurality of websfrom a roll or rolls around the revoluble platen ot a type writing:machine, and also to machines in which in addition to the usual ribbon athe webs, so that the webs will be written in duplicate.

The webs are shown in the form of rolls which are rotatively mounted inrear of the typewriting machine, from which the webs are led forwardlybeneath and around the platen. Since the weight of the rolls renders itobjectionable to carry them upon the letter-feeding platen carriage,they are supported on a fixture and do not travel with the carriage.Since, however, the leading portion of the web, which is fed around thep.-aten, does travel with the carriage, it results that that portion ofthe web between the carriage and the web spool is see-sawed back andforth during the movement of said carriage, and hence it is liable tostrain and perhaps rupture at its edges. To overcome this liability, andto tend to prevent the web from shitting laterally from time to time Iwhile running around the platen, l have contrived a device which atevery movement of the carriage in one direction loosens the This deviceis shown in the form of a litter bar, which engages the reach of the webei tenl ing from the carriage to the spool and lifts the same. therebyturning the spool a little and paying oll' some of the web. The same barserves to relieve both webs at the same time, or all the webs, it morethan two are employed.

The employment of a secondinking r b bon at the printing point to occupya post l tion between the webs has given rise to dilh culties in somecases. owing to the fact that 1 when the platen is turned there is atendency for the two webs to cooperate to pwk up the l ribbon and carryit along in linetemlingl direction, or in the oppos te direction, if theplaten is turned backwardly. To prevent such cooperation of the webs atinopportune times, I have connected to the line-spacing lever a devicewhich separates the welrs at :1 point close to the intervening ribbon,so hat said webs cannot pick up the ribbon, and hence so that tney maybe advanced without dragging the ribbon with them,

To prevent dragging of the ribbon when the platen is rotated by means ofthe usual platen knobs at its ends, I provide a lever whi h to be swungbefore such rotation of the platen is made. The swinging of this levercauses not only the withdrawal of the top web from the under web, butalso moves the ribbon edgewis'e up to a position sub stantially clear ofthe rear web, so that the platen may be rotated forward re )eatcdly bymeans of said knobs, without lia ility of dragging up said interveningribbon. To prevent downward dragging of said ribbon y the backwardrotation of the platen, I provide a pawl to check the platen againstbackward rotation. This pawl is normally ellective during, theline-by-line operation of the machine, and can only be released byswinging said lever to efl'ective position, and hence the platen may beturned lmckwardly only when the forward web is withdrawn from theribbon, and the latter is elevated clear of the rear web. It will thusbe seen that while the lever is in active position, the platen may berotated freely either backwardly or forwardly to 't'ced the webs ineither direction, and this without liability of dragging of the ribbonin either direction. Said iutrrvening ribbon is illustrator-l as mountedupon a pair of, spools. which are mounted upon the arriage at the endsoi the platen and connected by trains of years to the platen axle, sothat the ribbon is wound by the act of rotating: the platen. Suitableprovision is made for vill -ting rc \'tl'. ;ll ol the winding ot'theribbon. this being-j accomplished by throwing one spool wear out ofl\lt' 'll with its platen gear and Silllllllfllltfllfil) throwing theother gear into mesh with its platen gear.

Other features and atbaniag'es will be hereinaltlralescribml. such forinstance as an improvedlniil'e for use in tearing otl' the outer web.

In the accompanying drawings, Figure l Fig. 10.

is a perspectiv view of several of the main features of e invention,especially those located on or near the platen of the typewritingmachine. Fig. 2 is a part sectional side elevation of the typewritercarriage and of the web rolls and the casing in which the latter aremounted. Fig. 3 is a view corresponding to Fig. 2, illustrating theoperatron of the lifting bar in loosening up the outer coils of thewebs. This figure also shows the casing opened to permit inspection ofor give access to the webs. Fig. 4 is a sectional rear view takenthrough one of the rolls of paper, and showing the rear portion of thetypewriter and carriage, etc. Fig. 5 is a part sectional plan of thetypewriter portion of the apparatus. Fig. 6 1s a sectional view taken atthe left hand portion of the platen carriage, and illustrating the partsin normal positions. Fig. 7 is a view corresponding to Fig. 6, butillustrating the manner of separating the webs to prevent them frompicking up the intervening ribbon. Fig. 9 is a part sectional frontelevation of a part of the ribbon mechanism. Fig. 9 is principally adetail of the pawl which engages the platen ratchet wheel to serve as aback check. Fig. 10 is a view similar to Fig. 6, but showing the leverhaving been swung to withdraw the forward web and lift the ribbon clearof the rear web. Fig. 11 is a perspective detail view of the switchingcam mechanism for effecting the reversal of the direction of movement ofthe extra ribbon 14. Fig. 12 is a detail side elevation of theline-space mechanism, showing its relation to the lock for preventingthe reverse rotation of the platen, and the web-separating mechanism,parts being broken away to better disclose the construction. Fig. 13 isa detail side view of the winding spool for the web. Fig. 14 is a detailperspective view of one of the movable frames and connected parts. Fig.15 is a detail perspective view of the intermediate lever and arm fordisengaging the ribbon from its driving mechanism and for operating theweb-separating mechanism. Fig. 16 is a similar View of the operatorsdisengaging lever for throwing the parts to the position shown in Paperrolls 1 and 2 are mounted in rear of the typewriting machine 3, andtheWebs 4, 5 are led upwardly and forwardly therefrom between a pair ofside guides (5 and over the rounded top 7 of the paper shelf 8 usuallyforming part of the paper carriage 9 of the Underwood typewritingmachine, which is illustrated. The web is led down beneath a confiningrod 10, and passes down around and up in front of the cylindrical platenl1.

Types 12 strike through ribbons 13 and 14 against the front side of theplaten or the E cl usual mjperate with Webs thereon. Pressure rollconstruction and conru'4':- .1-' the platen to feed The ribh" .1. ll.will be seen, extends along the at of the platen and occupies a positionbetween the Webs. The top web is intended to be cut off at The bottomweb may emerge from the machine, passing over the bar 10 and slippingdownwardly along the top 17 of the casing, which is inclined backwardlyand rearwardly to facilitate this movement of the web.

The paper rolls 1 and 2 are mounted to turn upon horizontal axes, whichare parallel with the axis of rotation of the platen 11 and with thedirection of travel of the carriage 9. lVithin the casing is a lifterbar 18 carried upon a swinging arm or frame 19 fixed to a rock shaft 20journaled in the sides 21, 21 of the casing. From the rockshaft extendsforwardly an operating-arm 22, which presses up against a bar 23 fixedupon the carriage 9 and having at its left hand end, Fig. 4, an inclinedportion 24, up under which the operating arm 22 can ride to permit thelifter bar 18 to fallto the Fig. 2 position; said incline 24 thereafterserving at the return of the carriage as a cam to force down the arm 22a (1 swing the lifter bar 18 up toward the Fi 3 position.

The webs are fed forwardly line by line by the usual lever 25, pivotedupon the carriage 9 and acting through a slide 26 and pawl 27 to rotatea line-space wheel.28, which is fixed upon the axle 29 of the platen 11.Said lever is also a handle whereby the carriage 9 is run back to begina new line; or in other words, the lever serves both to return thecarriage and line-feed the paper.

It will be understood that the reach of web extending from the spool 1or 2 up to the paper carriage is sometimes askew, as at Fig. 4 forinstance, because of the movement of the paper carriage relatively tothe stationary rolls. I contrive to effect the linefeeding of the Webwhen this reach of the web is not skewed, or in other words when the webguides (i on the carriage stand directly in front of the rolls 1, 2.This occurs after a line of writin r has been completed and beforereturning the carriage to begin a new line. In order to cause themovement of the handle 25 to turn the platen and advance the web beforethe pressure on said handle-starts the carriage back to begin a newline, the incline 24. Fig. 4, is made quite sharp or abrupt, so that thecarriage encounters considerable resist ance to its return movement, inaddition to the resistance offered by the usual carriage-drivingspringbarrel 31. The weight of the bar 18, which preferably serves as ashaft for a row of inshort intervals.

dependently rotatable rolls 32, is sufiiciei-it to give a substantialcheck to the carriage, so

the rock shaft. 2t) (which may be hollow and pivoted upon a tic-rod3st), to partially counterbalance the bar 18 with the rolls 32 thereon,so that too much resistance shall not be felt by the operator to thereturn movement of the carriage. The resistance at the sharp incline 24is so great that the web not only advances before the carriage startsback but also before the bar 18 rises. Accordingly, the web firstadvances from the full line to the dotted line position, (a or 5) atFig. 2, and then the bar 18 rises to the Fig. 3 position, to loosen theouter. coils of the webs on the rolls 1 and 2. The rod 23 inclines as atfrom the lower portion .pf the cam 24 to the end of the rod, sothat"the'bar 18 continues to swing upwardly but at a lower speed, during theentire morement of the carriage back to begin a new line. During thesubsequent advance of the carriage in letter-feeding direction, the bar18 falls first slowly and then rapidly, that the webs are quite slackwhen the time. ar-

rives for them to be again advanced in linefeeding direction.

It will be seen, 1n the rear view at Fig. 4,

7 that the rolls 1, 2 are placed near the right hand side of the machineas viewed in that figure, so as to avoid shelving ot'v the web "when thecarriage has completed the line of writing and itis-tiine to advance theweb. In order to avoid. the necessity of setting the rolls too far tothe right at Fig. 4, the web guides (3 on the carriage are set thecarriage, since the advance movement of.

said web over said guides and around the platen occurs whenjhere issubstantially no skewing of the web, as above explained.

A stop 36 is provided to limitv the throw of the lifter bar 18. Each webspool may have a hollow core 37 to slip upon a spindle 38, the latterhaving a lever 39 pivoted at 4:0

in a slot 41 extending along the-spindle and proyided with teeth 42pressed outwardly by a spring 43 to engage the inner surface.

. oft he core 37 and lock the latter to the spindle At one-end, thespindle may carry a gud geon 44 to fitin a bearing 45 in the-adijacent-side 21 ot' the casing; and the other .55, Figs. 5, e,

v considerably to the right at Figs. tand 5. The extreme- F gr anextends no dug-her n end may be provided with another gudgeon 46 totit'in a bearing 47 provided in a stud 48 projecting inwardly from-theopposite side 21 of the casing. To provide for readily detaching thespool from the machine,

.the gudgeon' 46 may be made of yielding construction and mounted "in asocket 49 in the end of the spindle; a compression spring 50 beingconfined between the gudgeon body and the bottom of the socket, to holdthe gudgcon out (a shoulder 51 upon the gud goon being pressed by thespring againsta cap 52 secured on the end of the spindle). T 0 releasethe spool, it is only necessary to press it to the left at Fig.4,suflicient-ly to wvithdraw the gudgeon 44, and then the spool may bewithdrawn from the machine. For convenience of access to the spools, thetop 17 of the casing may be hinged at its lower end at 53, to permit itto swing up, as at Fig. 3..

At a point ust abort the extra ribbon 14,

a separator bar 54 catches behind thatop-or' outer web 4, and is movableforwardly from the Fig. (SpOsition for the purpose of separating the web4 to theFi'g. 7 position,

from the rear web .5, and prevent-the ribbon 14 from being caughtandcarried along by said webs. This. movement 10f the separator bar 54occurs when the webs are advanced inline-teeding direction by the leverSaid slide 26 1s provided with awrist 7 and ltlywhich engages an arm 56fixed upon a rook-shaft 57 mounted in brackets 58, 59, secured tothefront bar of the carriage J; and-uponv said rock-shaft are fixed twopendentarms-GO, connected by rea-rwardly extending links .61 to ears '62provided 'uponthe endsmfga "bar 63,"-'said separator rod- 54beingsecured atltsendsto the ends of p and '63, taken tpgethenjfitfiwhllIbeiseen at. v e ongated eye oreslit through which the ,fiont webf is.dr&.wn, and by whic'h its. .inovements, are: controlled. The

bar 63 serves ja ;,a. ;1nfiieedg -o "convenience in, tearing ofigtbeweb:4: a said web being usuallprinted tition of blank form", sary to severeach diofm- When the web'is tomlflfi' ap is t'' the incrder to preventhaknife bar 63; and

bility of a webedge'becoming withdrawn" said bar 63. .flf-bdmembeiqsintervals; t

from the combined controlof 'said' k'niie bar and said separator rod 5k, I have contrived tomake the separating movement of the rod 54 in a.downward gis'i well as forwarddirection; the -ears 62"bei;ng'for ;thispurpose guided by jdownwardly andf forwardly in .clinedslots 65 formediu the bracket arms 59. it is found the 5y "m ki th i drawing movementofthe separator bar 54 in this direction, there is. no liability of th stop edge of the severed web becoming released from the rod. It isfurther contrived. that the Web-separating movement of the rod 54 shalloccur before the web is advanced in line-feed direction, toavoid thepossibility. of such advancing movement dragging the ribbon 14 up. Tothis end, the first portion of the rearward movement of the slide 26 isidle so far as the platen ratchet 28 is concerned, or in other words,

the pawl 27 does not begin to act upon the platen until the lever 25 andthe slide 26 have made the first portions of their respective movements.During the initial portion of the movement of slide 26,-the wrist 55thereon engages a cam portion66 of the arm 56 and depresses said armto'the Fig. 7 position, completely withdrawing the web 4'; and duringthe remainder of' the rearward movement of the slide 26 and theconsequent rotation of the platen, the-wrist 55 travels idly along adwell portion 67 of the arm 56, as at Fig. 7, thus holding the web 4forward until'the completion of the line-feed movement of the platen.The slide 26 is 'returned to-normal position by a spring 68; and aspring 69'returns1the rock-shaft 57 to normal position, together withthe links 61 and the web-controlling members 63 and 54.

The ribbon 14 is wound upon a pair of spools 70, 71, arranged at theends of the platen 11 with their axes parallel to the platen axis andturning loosely upon studs 72. The ribbon extends forwardly from thespool 70 and through horizontal and diago- -nal guiding slots 73 and 74in a plate 75,

and then along the front. of the platen to corresponding guides in aplate 76, and thence back to the spool 71.

Upon the platen axle are fixed driving gears 77, 78 to mesh with pinions79, 80 fixed respectively to the ribbon spools 70,. 71. Either pinionmay be lifted out of mesh with its gear while the other pinion isdropped into mesh with its gear, so that the ribbon may be caused towind on eitherspool, as desired.

To facilitate such up and down movements of the winding-pinions 79-, 80,as well as for other purposes, the spool-carrying studs 72 are mountedrespectively upon movable framesSl, 82, each frame comprising a mainplate 83 or 84, having at its top a horizontal ear 85, from whichdepends a vertical guiding pin 86 fitting in a tubular housing 87 toslide up and down therein, said housings carried on brackets 88 Se curedupon the ends of the carriage 9. Each frame 81 or 82 also has a verticalguiding finger 89 to fit in a slot 90 cut in the bracket 88.

A device for reversing the direction of travel of the ribbon is seenatFigs. 5nd 8,- comprising two cam platcs 9l, 92, to patch- ,under arms93, 94, projecting forwardly from the guiding pins or bars 86. Theseshifters or switches 91, 92 are intended to be moved simultaneously tothe left or right,

as the case may be, and for this purpose are fixed upon the forward endsof arms 95, 96, the latter rigidly connected at their rear ends by a rod97, mounted in ears 98, 99, rising from the brackets 88. As seen at Fig.

8, each shifter or'switch has a notch 100, in

which the arm 93 (or 94) is caught, to hold the bracket 83 high enoughto keep the pinion 79 thereon out of mesh with the gear 77 and, uponfurther movemefit of said switch 91, arm 93 and bracket 83 are permittedto drop, to permit the pinion 79 to meshjagain with the gear 77. At thesame time through the connection 95, 97, 96, the arm 94 is cammed upby'the inclined edge .(101) on the switch 92, and said arm 94 drops intothe notch 100 on said switch, so that the ribbon may pay off from thespool 71 and wind onto the spool 70. The plates 75, 76 are in the formof ears bent from the main plates 81, 82 of the spool frames.

vVhenever desired, the Webs may be advanccd rapidly in line-spacedirection by means of the usual knobs or hand wheels 102 fixed upon theends of the platen axle 29. In order to avoid liability of the ribbon 14being dragged by ,the rapidPy moving web or webs 4, 5 at such times, Iprovide alever 103 haying a finger-piece 104, whereby not only may theseparator-rod 54 be drawn forwardly to the position at Fig. 7 or Fig.10, but whereby the ribbon 14 may be bodily lifted from the positionof-confinement at Fig. 7 to the elevated position at 14, Fig. 10, whereit is clear also of the rear Web 5. For lifting the ribbon 14 to thisposition, said lever 103 is connected to the vertically movable ribbonframes 81 'and 82, to lift up the frames bodily, together with the reachof ribbon which extends between the spools. This connection comprises anintervening lever 105, which is lifted by a cam 106 that is rigid withthe lever 103, the latter being pivoted at 107 upon a small bracket 108secured upon the left hand main bracket 88. Said cam 106 takes under theedge of the arm 105, the latter pivoted at 105 upon said bracket 108,and having at its rear end aand fits upon the rod 97, as at Fig. 5) and9 arms 11:1 11,2 fixed upon' said rock-shaft and extending forwardly;the arm 111 being lifted by a wrist 11 3 on the left hand spool frame81, and the other arm 112 engaging the pin 114 on the right hand spoolframe 82 to lift the same. Upon relieving the lever 103 from pressure,the spool frames and other parts may be returned by springs 115 It' willbe perceived that the lever 103 not onlylifis the ribbon 11 up to theFig. 10 position, but also draws forward the separator-rod 51; the lever105 being, for this purpose, provided with an arm or extension 116having at its lower end a cam 117, to

'engage a wrist 118 provided upon said rocking arm 56. During therearward movement of the arm 116 from the Fig. t) position to the Fig.10 position, said cam 117 moves down the wrist 118, thereby swinging thearm and the rock-shaft 57 to pull the separator-rod 54 forwardly. as atFig. 10; so that the ribbon 11 stands clear of both the forward web 4and the rear web Since there will be some liability, during theoperation of the machine, of an attempt being made to turn the platenbackwardly by means of the platenknobs 102, I provide a back-check pawl119, Fig. 1, which drops into engagement with the teeth of the ratchetwheel 28, and prevents any backward movement thereof. and hence of theplaten 11. The lever 103, however, has means to "elease said pawl, sothat when said lever is swung over to the position at Fig. 10, it willbe possible to rotate the platen freely either forwardly or lmcluvardly,as may be desired. 'lhis releasing means comprises a wrist or pin 120projecting from an arm 121 of the lever 103, to engage a lip 12;provided on an arm 123, which is fixed to the short shaft 124, whichcarries said baclccheck pawl 11!). .\t Fig. 10, it will be seen thatsaid pin lQO engages lip 129, and lifts the pawl 119 from the ratchet.This movement preferably occurs during the final portion of the swingingof the lever 103, so that it is insured that the ribbon 11 shall belifted clear of the bight of the webs before it be comes possible toturn the platen backwardiy. A spring 125, Fig. 9, restores the pawl toefiective position when the lever 103 is released.

A guiding finger 126,for the ribbon 14 .may be placed to .one side ofthe web but close thereto, to confine the ribbon asclosely aspracticable to the front of the platen, and at its top the finger may bebooked, as at 127, to prevent escape of the ribbon.

The reading end of the inner web 5 after sliding down the table 17 maybe looped up, as at 5*. Fig. and caught upon a spool 1.28 detachablyjournaledin the arms of a bracket 129 and having a winch 130.

Y this means the web may be wound up from time totime for preservation.A brake 131 may be employed to bear upon the winding roll 12% to causeit to wind tight, and also to oppose unwinding thereof. The bracket 12!)may be secured directly upon the cover 17.

When I refer in the claims to sheet I wish to be understood to mean alsoa group or layer or take of sheets such as are sometimes used togetherin typewriting niachines.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. In a typewriting machine, the combination with a web deliveringspool, a rota table platen movable back and forth relative theretotending to produce a tension to draw av web from said spool, and lineing the web to produce slackness in the web between the spool and theplaten greater than that due to the drawing of the platen and linespacing mechanism during the travel of the platen. H

3. In a typewriting machine, the combination with a web deliveringspool, a carriage movingback and forth relative there- ,to, a platenmounted in the carriage and tending to produce a. tension to draw a webfrom said s ool, and line-spacing mechanism for fee ing the web aroundthe platen also tending to draw the web from the the line-spacemechanism and automatically operated to unwind the roll on the spool toproduce a greater slackness in the web than that. due to the drawing ofthe platen and line-spacing mechanism. I

4. In a typewriting machine, the combination with a web deliveringspool, a platen on a carriage movable back and forth relative theretoand tending to produce a tension to draw a web from .the spool, andlinespaci draw t e web from the spoo of web-loosen- By ing mechanismcomprising a bar forcibly engaging the reach of the web between thespool and carriage to unwind the web from spacing mechanism thereforalso tending to draw the web from the spool, of web-loosen beginning ofa line for positively unwind s 001 of web-loosening mechanism separatefrom.

mechanism therefori also tending to movable'back and forth relative tereto,

V nation with a web delivering spool, a platen movable back and forthrelative thereto,

for returning the platen to the beginning 'on the spool, and a cam barmovin the spool to produce a greater slackness in the web than that dueto the pull of the platen and the line-spacing mechanism dur mg themajor portion of the travel of'the platen. I

5 In a typewriting machine, the combination with a web spool, a platenmoving back and forth relative thereto, of a-shiftable lifter bar, arock shaft with which it. is connected, an operating arm, and an in.-,clined bar movable back and forth withlthfi platen and engaging the armto throwtba lifter bar against the reach of the web' 'b tween the r'olland platen to relieve the strain on the web. I 1

6. In a typewriting machine, the combination with a-web de iveringspool, a platen movable back and forth relative thereto, and tending toproduce a tension to draw a web from the spool, and line-space mechanismfor feeding the web also tending to draw the web from the spool, ofweb-loosening mechanism separate from the line-space mechanism andoperable to produce a greater slackness than that due to the pull of theplaten and-the linespacing mecha-- nism during the back and forthmovement of the platen relative to the roll.

7. In a typewritin machine, the combination with a. web de lveringspool, a laten and line-space mechanism for feeding a web and forreturning the platen: to the beginning of a line, of web-looseningmechanism comprising a swinging! bar, an o erating arm for pressing thebar against t e reach of the web, and a cam bar moving back and forthwith the platen and engaging the arm to operate the swinging bar as theplaten returnsto the beginning of a line, the cam bar being effective todetain the platen at the end of the line of writing until thelinespacing mechanism has operated.

8. In a typewriting machine, the combination with a web deliveringspool, a platen movable back and forth relative thereto, and line-spacemechanism for feeding a web and of a line, ofweb-loosening mechanism forrelieving strain on the web occasioned by the relative movement of theplaten to the spool and eflective to retard the return of the platen tothe beginning of a line until the line-spacing mechanism has operated.

9. In a typewriting machine, the combiand line-spacing mechanism forfeeding a web and for returning the platen to the beginning of a line,of web-loosening mecha nism comprising a lifter bar, an operating armfor pressing the bar against the reach of the web to loosen the outercoil of the roll back and forth with the platen and engaging theoperating arm to effect the operation of the loosening bar.

'10. In a typewriting machine, the combinatiomwith a web deliveringspool, a platen movable back and forth relative thereto, and line-spacemechanism for feeding a web and for returnin the platen to the beginningof a llne, of we -loosening mechanism comprismg a lifter bar, anoperating arm for pressing the bar against the reach of the web toloosen the outer coil of the roll on the spool, and a cam bar movingback and forth with the laten and engaging the operating arm to e ectthe operation of the loosenin bar; the. cam bar having an abrupt'inchneto engage the operating arm when the platen is at the end of a lineeffective to retard the return of the platen to the beginning of a lineuntil the line-space mechanism has ad- -vanced the web around theplaten.

11. In a typewriting,.machine, the combination with a platen movableinletter-spacing direction, of a web delivering spool relative to whichthe platen moves, whereby as the platen is moved in one direction thereach of a web is skewed, line-s acing mechanism for feeding the web anfor returning the platen to the beginning of a line, the web deliveringspool being so located relative to the platen that when the latter is atone end of a line, the reach of the web will be in alinement with thespool and web, and retarding mechanism for temporarily detaining theplaten at such end of the line until the line-space mechanism hasoperated to advance the web around the platen while in proper alinementwith the platen.

12. In a typewriting machine, the combination with a platen movable inletter-spacing direction and return, of a web delivering spool'relativeto which the platen moves, so located relative to the platen that thereach of a web is in practical alinement with the platen when the latteris at one limit of its movement, line-space mechanism for feeding theweb, and Web loosening mechanism for relieving the strain on the reachof web and effective to retard the return of the platen to its oppositelimit of movement until the web has been advanced while in substantialalinement with the laten.

13. In a typewriting machine the com bination with a platen movable inletterspacing direction and return, of a web delivering spool relativeto which the platen moves, the spool being located near one limit of therange of movement of the platen so that the reach of the web will be in14. In a typewriting machine. the com on bination with a platen movableback and forth, of a fixture relative to which the platen moves, a webdelivering" spool journaled in said iixture from which a reach of theweb extends to the platen, a guide interposed between the spool and theplaten to condu t a web toward the platen, a table on said fixture nearthe platen adapted to support a backwardly extending leading end of theweb. and a winding spool for the lead; ing end of the web arranged tothe rear of the table.

15. In a typewriting machine, the combina'tion withm platen carriagemoving back and forth. of a fixed web delivering spool having" its axisparallel with the platen, line spacing mechanism for advancing a Webaround the platen, and web loosening mechanism, said web looseningmechanism being operated by the carriage on its return movemeat.

16. In a typewriting machine for writing on a plurality of sheets, thecombination with a platen, of a positively moving separating mechanismfor moving the sheets apart. said mechanism being operated by the linespacing device.

17. In a typewriting machine for writing on a plurality of sheets inink, the combine tion with a platen and a support arranged to hold aribbon interposed between two sheets, at'the printing line, ofpositively moving, sheet separating mechanism for moving the sheetsapart at a point close to the intervening ribbon to prevent draggingsaid ribbon above or below the printing line when the platen is rotatedin one direction or the other to advance or feed back the sheets.

18. In a typewriting machine for writing on a plurality of sheetsin ink,the combination with a platen, a support arranged to hold a ribboninterposed between two sheets, and line-spacing mechanism, of sheetseparating mechanism operated by the line-space mechanism prior to theadvance of the sheets, to separate the'sheets to prevent thedisplacement of the ribbon as the sheets are advanced. I

19. In a typewriting' machine for writingon a plurality of superposedsheets, the combination with a platen, a support arranged to hold aribbon interposed between two sheets. and line space mechanism toadvance the sheets. of sheet-separating mechanism comprising. a barpassing behind the outermost sheet. and a rock-shaft to which the bar isconnected and by which it is operated prior to the throw of thelinespace mechanism to separate the sheets, and prevent the displacementof the ribbon durinn" the. subsequent advance of the sheets" around theplaten.

" 20. In a t \'pewriting machine for writing a plurality of superposedsl'ieets, the combination with a platen. a support arranged to hold aribbon interposed between two sheets. and line-space mechanism toadvance the sheets, of sheet -separating mechanism comprising aseparating bar passing behind the outer sheet above the interposedribbon and movable toward and from the platen to separate the outersheet from that next beneathyto prevent the displacement of the ribbonas the sheets are advanced by the line-space mechanism.

.21. In a typewriting machim for writing on a plurality of super 'iosedsheets. the combination with a platen, a support arranged to hold aribbon interposed between two sheets, and line-space mechanism to advance the sheets, of sheet-se mrating mecha nismcomprising a separatingbar passing: behind the outer sheet above the interposed ribbon. aswinging: arm connected with the bar to move the latter away from theplaten to separate the outer sheet from that next l e-- neath to preventthe dis1i)lacement of the rib hon therebetwcen as the sheets are advented by the line-space mechanism.

'22. In a typewriting machine for writing: on a plurality of superposedsheets. the 1 bin ition with a platen. a support arranrg d t'o iold aribbon interpostul between two sheets, and line-space mechani m to-.d\iance, the sheets, of sheet-separating mechanism comprising aseparating bar pa sing behind the outer sheet above the interposedrihlam and movable toward and from he platen to separate the outer sheetfrom that n -1 beneath. to prevent the displaccnmxt at no ,ribbon as thesheets are adm red by the line-space mechanism: and a lnrr for actuatingthe shcetseparatine and line-space mechanisms successively.

23. In a tvpcwriting machine tor writing on a plurality of superpos dsheets. the combination with a platen. a upport arranged to hold aribbon int rpo ed lwlu'e n two sheets. and linepac nn-cbanisn to advancethe sheets. of llitl---t1 \l:tlllig i l t'lnltliv ll comprising aseparatinr l ar ii\-lll,,f behind the outer sheet above the in erposedribbon.

bar is connect d. and a l i'ei a tuated wrist engaging" the rain la edarm to retract the 'separating bar from the platen against, the

tension of a returning spring.

ll. In a typewriting machine for writing on a plurality ot' superpo edsheets. the com bination with a platen. a support arranged to hold aribbon interpo ed between iuo sheets. and line-space nn-chanisin to ad\:inrc t e sheets around the plat n. of separating." mechanismcttcctiveto separaie one of th' sheets from the other to fre the ribbon 2?. In at rpewritin; nun-bi for writing on a iluralitv of superpo ed sh ets, theconr bination with a platen, a, suppcv't arrane'ed a eanrfaeed arm ilh\vhh'h the eparating tan . to hold a ribbon interposed between twosheets, and line-space mechanism to advance the sheets around theplaten, of separating mechanism effective to separate one of the sheetsfrom the other to free the ribbon. including a separating memberinserted behind the outer sheet, and movable toward and away from thefront of the platen, and guides to direct the throw of the member.

26. 'In a typewriting machine for writing on a plurality of superposedsheets, the combination with a platen, a support arranged to hold aribbon interposed between two sheets, and line-space mechanism toadvance the sheets around the platen, of separating mechanism effectiveto separate one of the sheets from the other to free the ribbon, in-

' eluding an eye through which the outer sheet is drawn, and a leverefi'ective to control the position ofthe eye and sheet relative to theplaten.

27. In a typewriting machine for writing on a plurality of superposedsheets, the combination with a platen, a support arranged to hold aribbon interposed between two sheets, and line-space mechanism toadvance the sheets around the platen, of separating mechanism eifectiveto separate one of the sheets from the other to free the ribbon,including a pair of members loosely embracing the outer sheet to controlits position relative to the platen, and guides to deltermine thedirection of throw of the web controlling member.

28. In a typewriting machine for writing on a plurality of superposedsheets, the combination with a platen, a support arranged to hold aribbon interposed between two sheets, and line-spacing mechanism to ad-Vance the sheets around the platen, of separating mechanism eti'ectiveto separate one (if the sheets from the other to free the ribbon,including a separating bar taking bchind the outer sheet and movabletoward and from the front of the platen, a cutter lying in front of theouter sheet, a lever 'efl'ec'tiy'e to draw the separating bar andcutteraway from the platen, and guides to direct the throw of theseparating bar and cutter downward and forward to prevent thedisengagement of the severed end of the outer sheet and the separatingmechanism.

2.). In a typcwriting machine for writing on a plurality of superposedsheets, the comr bination with a platen, a support arranged to hold aribbon to run between two sheets, and line-spacing mechanism, of aseparating mechanism to engage the outer sheet to draw it away from theribbon to the linespacing of the sheets to preient displacement of theribbon, and efl'cctive to maintain the outer sheet withdrawn during theline-spa ing operation.

30. In a typewritiun' machine for writing 3 on a plurality of superposedsheets, the comribbon prior to theline-spacin of the sheets,

an arm for operating the roe shaft, and a lever for actuating the arm,and effective to maintain the bar and outer sheet withdrawn during theoperation ,of the line-space mechanism.

31. In a typewriting machine for writing on a plurality of superposedsheets, thecombination with a platen, a support arranged to hold a.ribbon to run between two sheets, and line-spacing mechanism, of aseparating mechanism, an arm driving said separating mechanism from saidline spacing mechanism, a dwell on the arm, and a driven member toengage the arm and dwell portion .thoreof to maintain the bar and outersheet withdrawn during the operation of the Fae-space mechanism.

In a typewriting machine for writing on a plurality of superposedsheets, the combination with a platen, a support arranged to hold aribbon to run between two sheets, and line-spacing mechanism, of aseparating mechanism comprising a bar, an arm driving said separatingmechanism from said line-Spacing mechanism, a lever to operate theline-space mechanism, said line-space mechanism being inefi'ective toadvance the sheets during a portion of its stroke, and a projectionconnected with said line'space mechanism to engage the arm to operatethe separating bar during the idle portion of the stroke of theline-space mechanism and effective to maintain the bar and outer sheetwithdrawn during the line-space operation.

33. In a typewriting machine for writing on a plurality of superposedwebs, the combination with a platen, a support arranged to hold a ribboninterposed between two webs, and a line-space mechanism,"of a separatingand cutting mechanism associated. with the outer web toshift the latteraway from the front of the platen to free the ribbonas the webs areadvanced, and ther return the web toward the platen, and effective toenable the operator to sever the outer web at will.

34. In a typewriting machine for writing on a plurality of superposedwebs, the combination with a platen, and line-space mechanism forfeeding the webs, of a separating and cutting mechanism associated withthe outer web to shift the latter toward and from the platen, andefiective to enable the operator to cut off parts of the outer web at will,and guides to direct the throw of the separating and cutting mechanismfrom the platen to prevent the disengagement of noeeaae the leading endof the severed web relative to the separating and cutting mechanism.

In a typewriting machine for writing on a plurality of superposed webs,the combination with a platen, a su port arranged to hold a ribboninterpose between 'two webs and a line-space mechanism, of a separatingand cutting mechanism having an eye through which the leading end of theouter web is drawn, one edge of the eye constituting a knife edge forsevering por tions of the outer web from the main body thereof, theseparating and cutting mechanism being movable from and toward theplaten, and uides to direct the eye' down onto the 1ea( ing end of themain body of the web, as the eye is drawn away from the platen toprevent the disengagement of the leading end of the web and the eye 36.In a typewriting machine for writing on a plurality of superposed webs,the combination with a rotatable platen and a support arrangedto hold aribbon interposed between two webs at the printing line, of separatingmechanism engaging the outermost web, to draw such outermost web awayfrom the platen and ribbon prior to the ro tation of the platen, and alever effective to shift the ribbon support to carry the ribbon fromclose proximity to the sheets, and to simultaneously withdraw theoutermost web relative to the platen and ribbon.

37. In a typewriting machine for writing on a plurality of superposedwebs, the combination with a rotatable platen and a support arranged tohold a ribbon disposed between two webs, of a web-separating mechanismto engage the outermost web to witln draw it from the platen prior tothe rotation thereof, and ribbon-displacing mechanism for shifting theribbon support to displace the ribbon from and replace it between thewebs.

38. In a typewriting machine for writing on a plurality of superposedsheets, the con1- bination with a platen, a movable support arranged tohold a ribbon interposed. be tween two sheets, and a line-spacemechanism, of separating mechanism for drawing the outer sheet away fromthe platen prior to the operation of the line-space mochanism, a checkto prevent the backward rotation of the platen, and a controlling levere'ttective to operatethe separating mechanism, displace the ribbonsupport to carry the ribbon from close proximity to the sheets, andsubsequently release the check to permit backward rotation of theplaten.

39. In a typewriting machine for writing on a p. .rality of superposedsheets, the com bination with a platen, a movable support arranged tohold a ribbon interposed between two sheets, and a line-space mechanism,of separating mechanism for drawing the outer sheet away from the platenprior to the operation of the line-space meditanism, a check to preventthe backward iotation of the platen, and a controlling lever effectiveto'operate the separating'm'edlanism and release the back check topermit backward rotation of the platen.

4,0. In atypewriting machine for writing on a plurality ,of suy'ierposedsheets, the combination with a platen, and connected frames arranged tosupport a ribbon int/erposed between two sheets, of a separatingmechanism eomprisii'ig a separating'bar taking behind the outermostsheet to draw the sheet away from the platen to free the ribbon, a camto operate the bar, a lever to lift the frames and elevate the ribbonfrom be tween the sheets, and a finger piece effective to operate thesheet separating and ribbon elevating n'iechanisms.

41. In a typewriting machine for writing on a plurality of superposedsheets, the combination with a platen, and connected frames arranged tosupport a ribbon interposed between two work elements. of a separatingmechanism, a pivoted check to prevent back rotation of the platen, aswinging arm connected with the check, ant. a lever effective to operatethe separating mechanism to draw the outer element away from the platen,and to operate the swinging arm to release the check.

42. In a typewriting machine for writing on a plurality of su 'ierposedsheets, the combination with a platen, and connected frames arranged tosupport a ribbon interposed between two work elements, of a. separatingmechanism, a pivoted check to prevent back rotation of the platen, aswinging arm connected with the check. and a lever operating an arm toengage and through the swinging the lever effective arm to release thecheck, to operate the separating mechanism to draw the outer workelement away from the platen.

43. In a typcwriting machine for writing on a plurality of superposedsheets, the combination with a platen, a movable support arranged tohold a ribbon interposed between two sheets, and a line-space mechanism,of separating mechanism for drawing the outer sheet away from theplaten'prior to the operation of the-lines}')ace mechanlsm. a check toprevent the backward rotation of the platen, and a controlling levereffective to displace the ribbon support to carry the ribbon from closeproximity to the shorts, and to subsequently release the back check topermit backward rotation of the platen.

44. In a typewriting machine for writing on a plurality of sheets, thecombination with a platen, of a guide for a sheet, means driven by theline-spacing mechanism of the platen for moving said guide to swing saidsheet away from the platen, said guide comprising a knife by which saidsheet may he cut, and guides for said sheet guide to cause it tocontinually engage the sheet as it swings.

45. In a typewriting machine for writing on a plurality of sheets, thecombination With a platen, of a line-spacing lever having the firstportion of its throw idle with respect to line-spacing, action, a guidefor a sheet, arranged to move said sheet from the platen, and means formovirn said guide by said lever during the idle portion of its throw.

In a, typewriting machine for Writing on a plurality of sheets, thecombination with a platen, of a line-spacing mechanism comprising alever, a slide moved by said lever and having a period of travel beforeit begins to operate the platen to space the lit), a pin on said, slide,a guide {or one sheet, and a cam driven by said pin to move said guideto swing said sheet toward and from the platen, during the first periodof travel- 47. In a typewriter, the combination with a traveling platen,of a stationary roll ho d r, 21 spindle adapted to carry a web in saidholder, means for maintaining a slack reach in said Web between saidholder and said platen, a second stationary roll holder adapted loreceive the Web from said platen, and a support for a slack reach of webbetween said platen and said second roll holder.

.48. The combination with a typewriter comprising a platen moving backand forth, of a stationary roll holder having an axis iixed parallel tothe travel of said platen, means for feeding a web from said holder tosaid platen. and means for reducing in the web the effect of skew straindue to the movement of the platen.

1-9. The combination with a typewriter comprisinp a platen moving backand forth,-

of a stationary roll holder having an axis parallel to the travel ofsaid platen, means for feeding a Web from said holder to said platen,and means for making a reach of said Web slaclc to diminish the effectof skew strains in the Web during the traverse of the platen.

50. The combination with a typewriter having a traveling platen, of aroll holder, means for feeding a Web from said holder to said platen, asecond fixed roll holder, a support for said roller holder adapted tosupport a slack reach in said web, means for Winding said web on saidser'ond holder, and a brake to cause said Web to wind smoothly and toprevent said slack reach from drag ging said web to unwind from saidholder.

at. The combination with a typewriter of a carriage carrying a platenand movable hack and forth, of a stationary roll holder havinn an axisparallel to the. traverse of said platen, means actuated by saidcarriage for keeping); loose a web {I ilSSlIifl from said holder to saidplaten. and a spindle for holding the Web, said spindle being mountednear one end of the carriage traverse so as to reduce, in the Web, theeliecl: of skew strain.

In atypewriting machine, the combination with a traveling platen, of astationary roll holder, :1 spindle adapted to carry a web in saidholder, means whereby a slack reach is constai'itly maintained in saidweb between said holder and said platen, and an edge guide traveling ithsaid platen to aline said Web as it is fed on to said platen.

Al il llldl) (ir. l KURUWSKT.

.VVitnesses:

JOHN C). Spinner, K. Faansroa'r.

